#W# Source and Scripts added. Added Scripts/Settings.cs to expose some basic tweak able settings.

Scripts/Spells/Ninjitsu/Backstab.cs

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+using System;
+using System.Collections;
+using Server.Network;
+using Server.Items;
+using Server.Mobiles;
+using Server.Targeting;
+using Server.SkillHandlers;
+
+namespace Server.Spells.Ninjitsu
+{
+	public class Backstab : NinjaMove
+	{
+		public Backstab()
+		{
+		}
+
+		public override int BaseMana{ get{ return 30; } }
+		public override double RequiredSkill{ get{ return Core.ML ? 40.0 : 20.0; } }
+
+		public override TextDefinition AbilityMessage{ get{ return new TextDefinition( 1063089 ); } } // You prepare to Backstab your opponent.
+
+		public override double GetDamageScalar( Mobile attacker, Mobile defender )
+		{
+			double ninjitsu = attacker.Skills[SkillName.Ninjitsu].Value;
+
+			return 1.0 + (ninjitsu / 360) + Tracking.GetStalkingBonus( attacker, defender ) / 100;
+		}
+
+		public override bool Validate( Mobile from )
+		{
+			if( !from.Hidden || from.AllowedStealthSteps <= 0 )
+			{
+				from.SendLocalizedMessage( 1063087 ); // You must be in stealth mode to use this ability.
+				return false;
+			}
+
+			return base.Validate( from );
+		}
+
+		public override bool OnBeforeSwing( Mobile attacker, Mobile defender )
+		{
+			bool valid = Validate( attacker ) && CheckMana( attacker, true );
+
+			if( valid )
+			{
+				attacker.BeginAction( typeof( Stealth ) );
+				Timer.DelayCall( TimeSpan.FromSeconds( 5.0 ), delegate { attacker.EndAction( typeof( Stealth ) ); } );
+			}
+
+			return valid;
+
+		}
+
+		public override bool ValidatesDuringHit { get { return false; } }
+
+		public override void OnHit( Mobile attacker, Mobile defender, int damage )
+		{
+			//Validates before swing
+			
+			ClearCurrentMove( attacker );
+
+			attacker.SendLocalizedMessage( 1063090 ); // You quickly stab your opponent as you come out of hiding!
+
+			defender.FixedParticles( 0x37B9, 1, 5, 0x251D, 0x651, 0, EffectLayer.Waist );						
+
+			attacker.RevealingAction();
+
+			CheckGain( attacker );
+		}
+
+		public override void OnMiss( Mobile attacker, Mobile defender )
+		{
+			ClearCurrentMove( attacker );
+
+			attacker.SendLocalizedMessage( 1063161 ); // You failed to properly use the element of surprise.
+
+			attacker.RevealingAction();
+		}
+	}
+}